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authorDan Carpenter <dan.carpenter@oracle.com>2017-01-09 11:20:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-10 21:46:41 +0100
commit816c9311f1144a03da1fdc4feb2f6b0d3299fca0 (patch)
tree18af1a5a0779a32f1c0964396b0cf42b3897979f /drivers/misc
parentddc5c9a37be4517270453ce909d3dfcc8de58230 (diff)
misc: mic: double free on ioctl error path
This function only has one caller. Freeing "vdev" here leads to a use after free bug. There are several other error paths in this function but this is the only one which frees "vdev". It looks like the kfree() can be safely removed. Fixes: 61e9c905df78 ("misc: mic: Enable VOP host side functionality") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/mic/vop/vop_vringh.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/misc/mic/vop/vop_vringh.c b/drivers/misc/mic/vop/vop_vringh.c
index 88e45234d527..fed992e2c258 100644
--- a/drivers/misc/mic/vop/vop_vringh.c
+++ b/drivers/misc/mic/vop/vop_vringh.c
@@ -292,7 +292,6 @@ static int vop_virtio_add_device(struct vop_vdev *vdev,
if (ret) {
dev_err(vop_dev(vdev), "%s %d err %d\n",
__func__, __LINE__, ret);
- kfree(vdev);
return ret;
}